US8197263B2 - Electric connection receptable for a solar cell module - Google Patents

Electric connection receptable for a solar cell module Download PDF

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Publication number
US8197263B2
US8197263B2 US12/967,165 US96716510A US8197263B2 US 8197263 B2 US8197263 B2 US 8197263B2 US 96716510 A US96716510 A US 96716510A US 8197263 B2 US8197263 B2 US 8197263B2
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United States
Prior art keywords
conductor
enclosure
box
solar cell
electrical contact
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Active, expires
Application number
US12/967,165
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US20110092094A1 (en
Inventor
Christian Rueggen
Kay-Hendryk Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kostal Industrie Elektrik GmbH
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Kostal Industrie Elektrik GmbH
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Assigned to KOSTAL INDUSTRIE ELEKTRIK GMBH reassignment KOSTAL INDUSTRIE ELEKTRIK GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: RUEGGEN, CHRISTIAN, SCHMIDT, KAY-HENDRYK
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/02—Details
    • H02G3/08—Distribution boxes; Connection or junction boxes
    • H02G3/16—Distribution boxes; Connection or junction boxes structurally associated with support for line-connecting terminals within the box
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/30—Electrical components
    • H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66—Structural association with built-in electrical component
    • H01R13/70—Structural association with built-in electrical component with built-in switch
    • H01R13/701—Structural association with built-in electrical component with built-in switch the switch being actuated by an accessory, e.g. cover, locking member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
    • H01R4/242—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members being plates having a single slot
    • H01R4/2425—Flat plates, e.g. multi-layered flat plates
    • H01R4/2429—Flat plates, e.g. multi-layered flat plates mounted in an insulating base
    • H01R4/2433—Flat plates, e.g. multi-layered flat plates mounted in an insulating base one part of the base being movable to push the cable into the slot
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to an electric receptacle and junction box for connecting to a solar cell module in which the box includes a housing having an enclosure base and an enclosure cover in which a first connector element for electrically contacting strip conductors of the solar cell module, second connector elements for electrically contacting output lines, and conductor rails connected respectively to the first and second connector elements are contained.
  • the connecting equipment for such receptacle and junction boxes used with solar cell modules connects the connecting conductors of the solar cell modules, which are generally formed as thin strip conductors on one side, and the output lines leading, for example, to an AC converter on the other side.
  • the solar cells in a solar cell module are generally connected to one another by thin strip conductors.
  • the strip conductors typically have a thickness of a few tenths of millimeters and a width of several millimeters.
  • the strip conductors that connect the individual solar cells of the solar cell module are designed so that the strip conductors can be used directly for connection purposes.
  • the strip conductors are typically introduced from below into the electric receptacle and junction box which has a removable cover so that the individual strip conductors can be connected with the aid of the electrical connecting equipment in the receptacle and junction box enclosure.
  • the connecting equipment includes so-called conductor rails.
  • the conductor rails are formed from sheet metal as bent stamped parts having good electrical conductivity, and are used to connect the voltages.
  • spring clamps or soldered contacts can be used.
  • An object of the present invention is a receptacle and junction box for connecting to a solar module in which the box enables relatively simple manipulation if service is needed and does so through an exceptionally simple and robust overall assembly.
  • the present invention provides an electrical receptacle and junction box for a solar cell module.
  • the junction box (or housing) includes an enclosure base and an enclosure cover.
  • the junction box houses a connection device having first connection elements for electrically contacting the conduction strips of the solar cell module and second connection elements for electrically contacting the outlet lines and busbars connected to the first and second connection elements, respectively.
  • First components of the connection device are solidly connected to the enclosure base.
  • Second components of the connection device are solidly connected to the enclosure cover. When the enclosure cover is joined to the enclosure base, the first and second components of the connection device are contacted to one another electrically.
  • the first component of the connecting equipment or device is rigidly connected to the enclosure base
  • the second component of the connecting equipment or device is rigidly connected to the enclosure cover
  • the electrical contact is made between the first and second components of the connecting equipment by joining the enclosure cover together with the enclosure base.
  • conductor rails connected to the first connector elements are connected to the enclosure base and conductor rails connected to the second connector elements are connected to the enclosure cover, and when the enclosure cover is brought together with the enclosure base they have internally engaging electrical contact elements in the form of knife contacts and contact tongues provided to respectively cooperate with the knife contacts.
  • bypass diodes that may be incorporated in the receptacle and junction box are thereby achieved by providing that the bypass diodes are connected to the enclosure cover as SMD (Surface Mounted Device) components.
  • the bypass diodes are soldered to the conductor rails which are implemented as large surface area strip conductors.
  • the electrical contacts of the first connecting element to the strip conductors of the solar cell module, as well as the second connecting element to the output lines, are preferentially implemented as soldered connections.
  • FIG. 1 illustrates an exploded view of a receptacle and junction box in accordance with an embodiment of the present invention
  • FIG. 2 illustrates the enclosure base of the receptacle and junction box of FIG. 1 with connecting lines from a solar cell module;
  • FIG. 3 illustrates the enclosure cover of the receptacle and junction box of FIG. 1 as seen from below.
  • a receptacle and junction box i.e., connecting box or housing
  • connecting box or housing for connecting to a solar module in accordance with an embodiment of the present invention
  • the receptacle and junction box includes an enclosure base 1 (i.e., a housing base) and an enclosure cover 2 (i.e., a housing cover). As described herein, enclosure cover 2 joins with enclosure base 1 to form the assembled receptacle and junction box.
  • enclosure base 1 i.e., a housing base
  • enclosure cover 2 joins with enclosure base 1 to form the assembled receptacle and junction box.
  • FIG. 2 illustrates enclosure base 1 . That is, FIG. 2 illustrates the receptacle and junction box with enclosure cover 2 being removed therefrom.
  • FIG. 3 illustrates enclosure cover 2 . That is, FIG. 3 illustrates the receptacle and junction box with enclosure base 1 removed therefrom.
  • Enclosure base 1 is mounted in a connection region of a solar cell module, and is attached to it, for example, by an adhesive.
  • the individual solar cells of the solar module (not shown) are connected to one another by thin strip conductors 4 .
  • Strip conductors 4 typically have a thickness of several tenths of a millimeter and a width of several millimeters. Strip conductors 4 are routed out of the solar cell module and can be used directly for making connections at that point. Strip conductors 4 are introduced from below into enclosure base 1 where they can then come into contact with the electrical connecting equipment.
  • Enclosure base 1 includes connecting equipment having a plurality of conductor rails 7 .
  • enclosure cover 2 includes connecting equipment having a plurality of conductor rails 8 .
  • Conductor rails 7 , 8 are fabricated from a sheet metal having good electrical conductivity in the form of bent punched components that serve to connect the voltages inside the connecting equipment.
  • Conductor rails 7 of enclosure base 1 are provided with connecting elements 3 that are bent upwards in a perpendicular direction from the plane parallel to the surface of the solar cell module.
  • Strip conductors 4 of the solar cell module are connected rigidly by soldered connections both electrically and mechanically by connection elements 3 .
  • the sections of the conductor rails 7 bent upwards perpendicular from the plane parallel to the surface of the solar cell module are formed as knife contacts 10 .
  • Knife contacts 10 are provided to respectively connect with mating contacts or contact tongues 11 intended for this purpose in enclosure cover 2 . Knife contacts 10 are thereby enclosed in isolation chambers 10 ′ that are molded integrally on enclosure base 1 .
  • enclosure cover 2 to be attached to complete the enclosure, and thus the entire receptacle and junction box, can be seen in FIG. 3 .
  • Enclosure cover 2 likewise contains conductor rails 8 that are formed as large surface area strip conductors in this case.
  • Conductor rails 8 are inserted during fabrication as a one piece punch grid into enclosure cover 2 .
  • Positioning and retaining pins 12 molded on enclosure cover 2 project through holes in the punch grid.
  • Positioning and retaining pins 12 are then fixed in place in their upper region, whereby the individual sections of the punch grid are uniquely fixed, and can be disconnected by separating the various voltages at disconnect points 8 ′ provided for this purpose.
  • Conductor rails 8 of enclosure cover 2 are provided with connecting elements 5 that are bent perpendicular from its primary plane of extension.
  • Output lines 6 from the solar cell module that lead to additional solar cell modules or to an AC inverter are connected rigidly by solder connections both electrically and mechanically through connecting elements 5 .
  • Output lines 6 are drawn as insulated round wires.
  • Output lines 6 are either inserted directly into a connection hole, that can be seen on the front side of enclosure cover 2 , held fast by a coupling nut and soldered with its uninsulated current conductor to connecting element 5 , or provided with a plug-in connector whose mating contact 13 is introduced into the connection hole and soldered to connecting element 5 , as shown in FIG. 3 .
  • bypass diodes 9 are mounted on conductor rails 8 as SMD components and are soldered in a reflux soldering process to the conductor rails. The one connection of bypass diodes 9 is thereby formed by the legs visible in FIGS. 1 and 3 , and the other connector is located on the underside of the component.
  • the receptacle and junction box is completed as shown in FIG. 1 by placing enclosure cover 2 on enclosure base 1 that is already attached to the solar cell module, for example, by an adhesive, and is electrically connected to strip conductors 4 so that contact tongues 11 of conductor rails 8 of enclosure cover 2 engage with knife contacts 10 of conductor rails 7 of enclosure base 1 , and thereby produce the electrical connection between strip conductors 4 of the solar module and output lines 6 .
  • Clip hooks 14 formed on enclosure cover 2 thereby engage in dedicated clip ports 15 of enclosure base 1 and ensure a rapid and secure attachment of enclosure pieces 1 , 2 with one another.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Photovoltaic Devices (AREA)
US12/967,165 2008-06-14 2010-12-14 Electric connection receptable for a solar cell module Active 2029-06-11 US8197263B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102008028462.9 2008-06-14
DE102008028462A DE102008028462A1 (de) 2008-06-14 2008-06-14 Elektrische Anschluss- und Verbindungsdose für ein Solarzellenmodul
DE102008028462 2008-06-14
PCT/EP2009/057215 WO2009150189A2 (de) 2008-06-14 2009-06-10 Elektrische anschluss- und verbindungsdose für ein solarzellenmodul

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2009/057215 Continuation WO2009150189A2 (de) 2008-06-14 2009-06-10 Elektrische anschluss- und verbindungsdose für ein solarzellenmodul

Publications (2)

Publication Number Publication Date
US20110092094A1 US20110092094A1 (en) 2011-04-21
US8197263B2 true US8197263B2 (en) 2012-06-12

Family

ID=41317831

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/967,165 Active 2029-06-11 US8197263B2 (en) 2008-06-14 2010-12-14 Electric connection receptable for a solar cell module

Country Status (4)

Country Link
US (1) US8197263B2 (de)
EP (1) EP2294625A2 (de)
DE (1) DE102008028462A1 (de)
WO (1) WO2009150189A2 (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120069505A1 (en) * 2010-09-17 2012-03-22 Delta Electronics, Inc. Junction box and electrical connection mechanism thereof
US20120270450A1 (en) * 2010-03-04 2012-10-25 Andreas Leonhard Connection Device For A Solar Module
US8308504B2 (en) * 2008-12-12 2012-11-13 Tyco Electronics Amp Gmbh Connecting device for connection to a solar module and solar module with such a connecting device
US20130012060A1 (en) * 2011-07-05 2013-01-10 Hon Hai Precision Industry Co., Ltd. Junction box improved locking portion
US8900019B2 (en) * 2011-10-13 2014-12-02 Hosiden Corporation Solar cell module terminal box
US20150038011A1 (en) * 2011-05-02 2015-02-05 Solaredge Technologies Ltd Junction Box for Snap Together Electrical Connections to Photovoltaic Panels
US9013065B2 (en) 2010-06-24 2015-04-21 Semikron GmbH & Co., KG Connecting mechanism arrangeable to a photovoltaic module
US11063375B2 (en) * 2017-12-06 2021-07-13 Zeon Corporation Connection instrument
US11452217B2 (en) * 2019-10-25 2022-09-20 Chicony Power Technology Co., Ltd. Housing device with combination structures

Families Citing this family (13)

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Publication number Priority date Publication date Assignee Title
US8933321B2 (en) * 2009-02-05 2015-01-13 Tigo Energy, Inc. Systems and methods for an enhanced watchdog in solar module installations
DE102010043909A1 (de) * 2010-11-15 2012-05-16 Robert Bosch Gmbh Anschlussdose eines Solarzellenmoduls, Solarzellenmodul und Verfahren zu dessen Herstellung
DE102011009005B4 (de) 2011-01-14 2014-07-31 Solon Se Elektrische Anschlussdose für ein Photovoltaikmodul
DE102011009717A1 (de) * 2011-01-29 2012-08-02 Kostal Industrie Elektrik Gmbh Elektrische Anschluss- und Verbindungsdose für ein Solarzellenmodul sowie Verfahren zur Herstellung einer elektrischen Verbindung
KR101796045B1 (ko) 2011-04-12 2017-11-10 엘지전자 주식회사 태양광 모듈
CN202534666U (zh) * 2012-04-12 2012-11-14 浙江佳明天和缘光伏科技有限公司 一种太阳能电池接线盒
DE102012014695B4 (de) * 2012-07-25 2019-12-24 Phoenix Contact Gmbh & Co. Kg Wechselrichter mit mehreren Wanddurchführungen
CN103894837B (zh) * 2014-02-26 2016-03-02 常熟市福莱德连接器科技有限公司 一种接线盒盒盖成型工艺
CN205017265U (zh) * 2015-08-26 2016-02-03 泰科电子(上海)有限公司 光伏接线盒
CN205051644U (zh) * 2015-08-26 2016-02-24 泰科电子(上海)有限公司 光伏接线盒
US10557646B1 (en) 2016-07-11 2020-02-11 Nextracker Inc. Sensing and feedback for row on sun tracking method and system
US11251746B2 (en) 2018-11-20 2022-02-15 Nextracker Inc. Staged stowage of solar trackers and method thereof
US11894729B2 (en) * 2021-03-13 2024-02-06 Hamilton Sundstrand Corporation Alternating current connection housing with integrated inserts

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DE102006012665A1 (de) 2005-04-01 2006-10-05 Onamba Co., Ltd. Anschlussbox für ein Solarzellenpanel
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US7530837B2 (en) * 2005-06-03 2009-05-12 Guenther Spelsberg Gmbh & Co. Kg Electrical junction box for a solar cell module
US7845969B2 (en) * 2008-04-23 2010-12-07 Mc Technology Gmbh Contact element for a connecting terminal, connecting terminal, and plug link for a contact element

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8308504B2 (en) * 2008-12-12 2012-11-13 Tyco Electronics Amp Gmbh Connecting device for connection to a solar module and solar module with such a connecting device
US20120270450A1 (en) * 2010-03-04 2012-10-25 Andreas Leonhard Connection Device For A Solar Module
US8632358B2 (en) * 2010-03-04 2014-01-21 Tyco Electronics Amp Gmbh Connection device for a solar module
US9013065B2 (en) 2010-06-24 2015-04-21 Semikron GmbH & Co., KG Connecting mechanism arrangeable to a photovoltaic module
US20120069505A1 (en) * 2010-09-17 2012-03-22 Delta Electronics, Inc. Junction box and electrical connection mechanism thereof
US8432699B2 (en) * 2010-09-17 2013-04-30 Delta Electronics, Inc. Junction box and electrical connection mechanism thereof
US11005417B2 (en) 2011-05-02 2021-05-11 Solaredge Technologies Ltd. Junction box for snap together electrical connections to photovoltaic panels
US9160092B2 (en) * 2011-05-02 2015-10-13 Solaredge Technologies Ltd Junction box for snap together electrical connections to photovoltaic panels
US20150038011A1 (en) * 2011-05-02 2015-02-05 Solaredge Technologies Ltd Junction Box for Snap Together Electrical Connections to Photovoltaic Panels
US20130012060A1 (en) * 2011-07-05 2013-01-10 Hon Hai Precision Industry Co., Ltd. Junction box improved locking portion
US8748743B2 (en) * 2011-07-05 2014-06-10 Hon Hai Precision Industry Co., Ltd. Junction box improved locking portion
US8900019B2 (en) * 2011-10-13 2014-12-02 Hosiden Corporation Solar cell module terminal box
US11063375B2 (en) * 2017-12-06 2021-07-13 Zeon Corporation Connection instrument
US11452217B2 (en) * 2019-10-25 2022-09-20 Chicony Power Technology Co., Ltd. Housing device with combination structures

Also Published As

Publication number Publication date
DE102008028462A1 (de) 2009-12-17
US20110092094A1 (en) 2011-04-21
WO2009150189A3 (de) 2011-01-20
WO2009150189A2 (de) 2009-12-17
EP2294625A2 (de) 2011-03-16

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